Apparatus for treatment of green coffee, shelled peanuts, or other nuts to be roasted, dried beans, peas, small grains, etc.



0 1 MW, w H 9 TC 4 OM 1 R O 7 s SN TI UA Non MG Pm mm MS E ,w SuSuSB u m1 0E,P RE ,w TFS AFN mut WNB@ K,EDS EEd .mme L DM w ,F D TE NT ES MA T0 MR RE I m F 9 1 su ww 7 A R 11 A.. w m A u HJ INVENTQR: S Lawrence Waff-ous. B Y @W4 W ATTORNE Y6.

. aan@ i?, 12a.

a a. n Ji..

LAGE R. WTMS, OF MINNOLIS. MINNESOTA.

APPTUS FOR runner or Ganan corran, snan rnANU'rs, on. or

NUTS TO BE RQASTED, DRIED BEANS, PEAS, SLL GRAINS, ETC.

Application led September 19, 1922. Serial No. 589,113. i

To all whom z'tmay ccmcem.'

lBe it known that I, LAWRENCE K. WAT- RoUs, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in apparatus for treatment of green coffee, shelled peanuts, or other nuts to be roasted, dried n neutralized,

beans, peas, small grains, etc., of which the following is a specification.

My invention relates to an apparatus for treatment of green coliee, shelled peanuts or other nuts to be roasted, dried beans, peas,

small grain, etc. An object is to provide an apparatus having a receptacle in which raw products are subjected to steam under high pressure for the purpose of removing undesirable qualities. The steam under high pressure is allowed to enter such receptacle and forces its way through green colee or other products contained in loosely woven sacks or bags placed in layers in the receptacle. rlhe steam after penetrating through the material being. treated finds an exhaust at a suitable place in the receptacle through a pipe which may be associated with a cold water coil so that the exhausted steam is condensed back to a liquid. The duration of treatment is in accordance with the nature of the product to be treated, the amount of load placed in the receptacle for treatment and the time necessary to bring about the desired change in the character of the product. This change so far as l am at present able to ascertain involves hydrolysis of vegetable fat and proteid enzymes by catalytic action and the transformation of such enzymes and other chemical agents. ln the case of een codes such hydrolysis or catalysis o enzymes sets up a ferment which in turn kills or neutralizes or sterilizes the codec germ of reproduction and other unknown agencies of deterioration in roasted coee and so prevents natural fermentation or decomposition inroasted codes which always takes place after roastin if enzymes and germs are not estroyed or removed as in accordance with action of above described process. Green codes treated in accordance `with the process as described for a proper period of time for age, character, moisture contents, etc., loses its ability to become stale and bitter when roasted and remains fresh in davor for an indefinite time which is not chemicals.

Green coffee when so treated and roasted becomes velvety in smoothness, and this method of treatment does not change its character of cup quality except to greatly improve it by removing objectionable materials or By such treatment coffee so treated becomes a more delicious beverage and all over-stimulating elements are greatly modied. Further, by reason of the described treatment or removal of such enzymes, green coil'ee when so treated and roast.- ed not only makes a deliciousl smooth cup of coii'ee-with hard water, lime, or iron water but can be boiled in any water for any length of time without the usual harm to fneness of flavor which takes place in all roasted coffees not so treated. or processed as described above. Coffee so treated proves economical in usage for the spent grounds can be used a second time by the addltion of a ysmall amount of fresh coffee and so brewed the second time produces a fine cup of codes even though when boiled to excess, for treatment of the green coffee by this method or process has removed Vegetable or chemical contents which quickly spoil the best of coffee when over-brewed, over-percolated or over-boiled which so quickly harms and spoils coee not so treated and by reason of this prevailing danger in using ordinary roasted codec (not processed as above) successful coffee-making is now a matter of long training and studied skill but with coffee treated by my process anyone can make a fine cup of coee. By such treatment shelled nuts for, roasting are likewise im roved and made to remain fresh much onger than any not sontreated, and dried beans, peas, small grains, etc. are likewise also greatly improved as food products for when so treated they aremade sterile and the deteriorating chemical reaction whichv invention will appear in connection wit the detailed description, and the n ovel tures embodied in m inventive ideatvlll be particularly pon l= i out in the cla lln the accompanying drawings which itllustrate the application of my invention 1n one form, Fig. 1 is a view of the apparatus mostly in central vertical section. Fig. 2 is a top plan view. Fig. 3 is a view in horizontal section on the line 3 3 of Fig.l1.. i

v which` is provided with a screw plu Referring to the construction shown in the drawings, the numeral designates a cup-shaped member which is provided with supporting legs 12. rlhe central portion of the member 10 has a screw-threaded openipg 4; A steam supply pipe 16 isv provided with a shutod valve 18, and lthis pipe extends through the plug 14'into a steam pressure chamber 20'where it terminates in a spraying nozzle 22. Connected with the steam` chamber by tubes extending through the base are a drain cock 24, a pressure gauge 26, and a safety valve 28.v rllhe base 10 is hollow and open at its upturned periphery to provide two concentric ymargins to which are attached two concentric metal shells and 32, the inner shell 32 being lined with a glass tube 34. A steam supply pipe 36 supplies steam to the space in the hollow base and to the space between the concentric shells 30 and 32, the latter space being connected to a pressure gauge 38, and safety valve y40 and having an exhaust pipev 42' leading from the upper portion thereof.

tA separate perforated bottom 44 is pro-v vided for the glass tube 34. This bottom is preferably glass enameled land is made in 56. rllhe cover is provided with handles 58,

a pressure gauge 60, a safety valve 62, vand an exhaust pipe 64 having a shutod valve 66.` The glass lining 34 is adapted to receive a plurality of sacks S piled one on top of another and containing the material M which-is to be treated.` A drip cone 68 having a vertical concentric` flange A7() is -v adapted to rest upon the upper one of the sacks S. is cone preferably consists of an intermediate piece of metal faced on both sides by glass, and it is provided with a Mesero central opening, for the escape of steam and with hooks 74 by means of which Iit may be removed.

The operation and advantages of my invention have already been set forth. The

from the exhaust pipe 64 carrying -with it the undesirable qualities of the material. Any condensate forming at the top of the apparatus is caught within the flange 70 and prevented from seeping back through the material which is being treated. Steam is admitted through the pipe 36 to the space between the shells 30 and 32, thereby heating the peripheries of the sacks and preventing condensate from forming. The provision of the glass lining prevents contamination of the material while it is being treated.

l claim:

1. Apparatus for treating green coffee, shelled nuts, dried beans, peas, small grain, etc., comprising a receptacle for receiving said products, a closure for said receptacle, an inwardly converging drip flange depend` ing from said closure, a drip receiving mem* ber adapted to be placed on top of said products, said member having a central-opening for passage of steam, and means for introducing steam under pressure into-said receptacle.

2. Apparatus for treating green coffee,

Ashelled nuts, dried beans,'peas,'small grain,

etc., comprising a hollow cupshaped base member, a casing supported on said base member and having an internal diameter greaterthan that lof the upper end of said base member whereby the latter forms an annular shoulder,- a perforated partition adapted to restupon said shoulder, said partition being hinged whereby it may be col'- lapsed upwardly, said casing forming a receptacle for recelving said products, a closure for said receptacle, and a steampipe extending through said cupshaped member for delivering steam underneath said part1t1on.

lin testimony whereof l hereunto aix my signature.

Lawrence n. wnrnons,

llO 

